The GED is an online (computerized) test, but you have to report to a designated testing center to take it. There are all sorts of TSA-like security measures in place to make sure you can't "cheat." The proctor(s) will take away your phone, your fitbit watch, your purse or wallet and any paper you have away from you. (Some of them will even make you get rid of your chewing gum!) Also, remember that you'll have no control over the temperature of the testing room, so dress in layers. :-)
